On Sunday, Britain’s Telegraph newspaper cited the report as putting the number of opposition forces at 100,000, broken up into around 1,000 groups.

The
study said that around 10,000 fighters were jihadists like those groups
linked to al- Qaida, including foreign fighters; 30,000- 35,000 were
hardline Islamists whose ideology overlapped with the jihadists’, but
were specifically focused on the Syrian war rather than global jihad;
and another 30,000 fighters had an Islamic character – including the
Muslim Brotherhood and similar groups – leaving a small group of
non-Islamist fighters fighting for more nationalistic goals.